Will Synthetic Oil Improve Mileage?

[DMZ]

Originally Posted by TOLMACH

Thanks

Winters in Moscow are relatively mild compared to my hometown in Eastern Russia )) Also, from a standpoint of winter-operation, is there a difference in mineral vs synthetic engine oil if both are rated as f.i. 5W40?

I switched to synthetic oils something like 5 years ago for all cars I had since that time .. cause I heard they keep engine clean better

Synthetic oil have been shown to have better low temperature viscosity performance when compared to mineral (dino based) oils. Therefore, they tend to give much better lubrication during cold temperature start-ups. This results in longer engine life as it is during cold starts that engines parts can incur significant wear.

[TOLMACH]

Originally Posted by DMZ

Synthetic oil have been shown to have better low temperature viscosity performance when compared to mineral (dino based) oils. Therefore, they tend to give much better lubrication during cold temperature start-ups. This results in longer engine life as it is during cold starts that engines parts can incur significant wear.

Thanks